In this article we will look at how to make a stove from a cast iron bathtub. What materials and tools are required for construction. The advantages of such a stove.

If you have an unnecessary cast-iron bathtub at your disposal, do not rush to throw it away or sell it for metal. From this bath you can easily make a wonderful barbecue oven on your summer cottage.

A stove made of this, it would seem, no one the desired bath will be a wonderful decoration and a wonderful stove for cooking various dishes. Cast iron is a metal with high thermal conductivity that excellently stores heat. In such an oven it is good to cook both regular food and bake baked goods and various amazing dishes.

Do-it-yourself stove from a cast iron bath

Advantages of the oven

Just the thought of making such a stove can help solve some accumulated problems and reveal the following advantages:

• year-round opportunity to cook your favorite food
• a beautiful stove will be a good decoration for your dacha
• cost savings during construction
• saving gas, electricity
• getting rid of unnecessary baths

How to make a stove from a cast iron bathtub

The bath needs to be divided in half. The halves are connected to each other with the concave part facing outwards. Between the separated halves lies a sheet of metal with a thickness of 10 mm, which separates the firebox from the place where the food will be prepared. In the upper cut-off part of the bathtub and in the metal sheet, through holes are made for the pipe, which in turn will serve as a smoke exhaust, and the pipe is welded. Then they fix the stove and give it an aesthetic appearance.

Tools and material for manufacturing

To make it you will need:

• unnecessary cast iron bathtub
• a metal sheet
• grinder with metal disc
• heat resistant sealant
• pipe, drill, bolts
• welding

Preparatory work

First you need to make blanks:

• the bath is marked in the middle, turned upside down and divided in half
• cut a blank from a metal sheet to the size of the resulting half of the bath
• Mark and cut through holes for the pipe on the sheet of metal and the top of the bathtub
• the pipe is welded and brought out through top part
• make markings to fasten the halves of the bathtub and the sheet between them

Foundation for a stove made of a cast iron bath

Since our oven will be heavy, we need to make under it. With a foundation, the stove will not shrink or become deformed. It can be made of brick or, for a larger structure, poured. Supports are embedded into it at the required height so that the stove is at the same level.

Assembling a stove from a cast iron bath

The edges of the combustion part are coated with heat-resistant sealant, then an iron sheet with a welded chimney is placed on it.

The parts of the bathtub with an iron sheet in the middle are pressed together with bolts.

The entire structure is fixed on supports. Then it is covered with bricks. A grate is inserted into the combustion part.

If the stove has a closed firebox, then the doors are immediately installed during the manufacturing process of the stove.

Furnace insulation

The upper part of the furnace is pulled together metal mesh and covered with clay and sand. Then lays out decorative rock or heat-resistant tiles. If it’s easier, you can just whitewash it.

Problems in kiln construction

Problems during the construction of a barbecue oven can occur during the preparation stage during work related to cutting the bathtub. It must be divided very slowly, without haste. First you need to cut the enamel layer in order to avoid chipping. Then they begin to saw the metal at an angle, making small cuts. The grinder should not overheat. To prevent the bath halves from pinching the disk, the cut must be spread with a suitable board or fittings.

Do-it-yourself stove from a cast iron bathtub video

The video clearly shows a stove made from a cast iron bath. The structure of the structure and what materials are required to fasten all parts of the furnace are announced.

If you have an old cast-iron bathtub lying around somewhere in your garage or dacha, you shouldn’t rush to sell it for scrap. It can be used to make an excellent outdoor oven and install in the garden.

A stove made from an old unnecessary thing will become decoration and an excellent assistant, delighting guests and household members with delicious and original dishes.

Most often, old cast iron bathtubs are made from garden barbecue oven. The cast iron from which the bath is made, having high thermal conductivity, retains heat for a long time and allows you to cook not only the usual food, but even bake bread and other unique dishes.

How to make a stove from an old cast iron bathtub?

The essence of the construction is that the bath cut in half. The resulting halves are placed one on top of the other, with the curved side outward, and laid metal sheet between them.

It separates the firebox and the chamber in which the food will be cooked. Holes are made in the sheet of iron and the upper half of the bath for chimney and the pipe is welded.

All that remains is to strengthen the structure, give it an interesting look, insert grate bars and do doors.

Necessary materials and equipment

To build a garden stove you will need:

• herself bath, it can be steel, but better - cast iron;
• Bulgarian;
• edged metal cutting circles;
• circles for grinding;
• Metal sheet thick 5 mm and more;
• drill;
• bolts;

• heat-resistant sealant;
• tape measure or roulette;
• pencil or marker;
• welding machine ;
• pipe for chimney;
• grate bars;
• bricks;
• clay;
• sand.

Preparatory work

Before you start building a structure, you need to make all the preparations:

• Mark the middle of the bathtub and cut it in half - this work is labor-intensive and dusty, so it's better to spend it outside by turning the bathtub upside down.
• Cut a blank from a metal sheet to the size of the resulting half.
• On a cut sheet of iron and half of the bathtub that will be on top, mark the holes for the chimney and cut them out.
• Weld the pipe into the partition and bring it out through the upper part.
• Do markings for fastenings.

Important! All work on cutting, grinding edges and trimming iron sheets must be carried out wearing safety glasses. A welding work- V special mask.

DIY stove construction

When all preliminary the work is done, you can proceed directly to the construction of the furnace itself.

Foundation

Furnace design quite heavy, so you can’t do without a foundation. It will not allow the device to shrink and deform.

For a structure that is not heavy in weight, the foundation can be brick. For more significant is done bulk- depth up to 50 cm. To ensure that the stove is at a convenient level, supports are concreted into the foundation required height.

Further work is being carried out after completely dry foundation.

Assembly of the structure: photo

1. Half of the bath, which is reserved for the lower combustion part of the stove, coated with sealant, the top is covered with pre-cut sheet of iron with a welded chimney. You can insert cast iron into this sheet hob.

Photo 1. A cast-iron bathtub, carefully sawn in half, is prepared for applying sealant.

1. Top design covered with the other half bathtubs, bottom up, passing the chimney pipe into a pre-cut hole. The edges in contact with the metal sheet are also coated with sealant.
2. Both halves of the bath and the sheet between them fastened together with bolts.

Photo 2. The connected halves of the bath form the body of the stove: the combustion chamber and the cooking compartment.

1. Finished design mounted on supports in the foundation and lined with bricks. The masonry can be only on the back and sides or on all sides.
2. In the lower part - the combustion chamber - is installed grate.

Photo 3. The stove, assembled from two halves of the bath, is almost ready. All that remains is to fit the doors.

If the furnace design provides closed brickwork firebox and vent, then when working immediately doors are mounted: for the blower in the lower part, for the firebox - a little higher, opposite the grate.

Important! The damper or door handle must be wooden to avoid burns.

The wall is laid out to the junction of the edges of the bathtub with each other. The bricks must fit tightly to all edges of the stove.

For the top compartment stoves are provided flap or door. In the tightly closed part you can not only cook any dishes, but even bake bread.

Insulation of the cooking chamber

Upper half drags on mesh, throws a solution of 1 part clay and 2 parts sand, thickness up to 7 cm and levels out. You can decorate the top wild stone, pieces heat resistant tiles or simply whitewash.

The final stage

That's it - bake ready, you can already use it. But many are trying to give it more modern look, For what rough work hide beautiful masonry bricks, veneer wild stone or decorative tiles.

Photo 4. Finished whitewashed cast iron stove from a bathtub, installed in the garden on a brick base.

Possible difficulties during work

Problems when constructing a garden stove, problems may arise on preparatory stage when cutting into an old cast iron bathtub.

Advice. Work is carried out wearing glasses and thick clothes, covering the body.

It needs to be cut carefully, slowly. First, the enamel layer is cut along the marking line to prevent chipping. Then the cast iron is cut at an angle, making small slits, and not allowing the angle grinder to overheat. To prevent the disc from being pinched by the bath halves, the incision site is expanded wooden stick or brick.

The first thing you should do before starting work is to be patient and purchase some tools. Next, you need to clearly measure half of the bath and draw a line exactly in this place. At this stage of work, you will need an angle grinder with a working diameter of 250 millimeters, as well as several high-quality cutting wheels for metal.

Using these tools, we saw our now former bath in half. Remember, the most important point at this stage of work, is to carry out correct measurement. A mistake, even by one centimeter, will lead to the fact that the stove from a cast-iron bathtub will no longer work.

Assembling the furnace body

Once all the preparatory work has been completed, it is time to assemble the stove. To do this, you need to carefully match all the previously made holes and fasten them with reliable bolts. At this stage, you should also take care of the tightness of the future furnace. To do this, you can use a special sealant, basalt cardboard or even asbestos.

Once each bolt is tightened as tightly as possible, the stove assembly is complete.

In order for our design to acquire a finished look, it is also necessary to take care of the doors. They are best cut from pieces of metal whose thickness is 5-8 mm. The resulting stove is installed on a pedestal made of brick and insulated with basalt fiber. This is necessary in order to maintain the highest possible temperature in the oven. high temperature.

But do not forget that stoves of this type can be used not only for cooking, but also, for example, for heating rooms. Therefore, it should be taken into account that it is simply necessary to insulate garden stoves, otherwise all the heat will be spent on warming up the surrounding air. And if the stove is supposed to be a sauna stove, it is better to refuse insulation, since its main task is to transfer heat to the room in which it is located.

In order for the resulting design to acquire beautiful view, it should be refined. It is best to paint the stove itself with black refractory paint, and decorate the brick on which it is installed with a variety of finishing materials.

Advantages and disadvantages of a cast iron bath stove

The main advantage of this design, of course, is its cost. If you have an old bathroom, you will need very little Money in order to turn it into an oven.

The second no less important advantage can rightfully be considered the durability of such a stove. It depends solely on how well you have worked the joints between the two halves of the bathtub. But even if you didn’t succeed in making perfect seams the first time, you can always disassemble the oven and correct the defect.

But if we consider this design from the point of view of thermal engineering, then its operating efficiency will not exceed 40%. This happens because the flue gases have a direct exit to the outside, which means they transfer only part of the heat to the furnace itself, while the rest is sent into the atmosphere. That is why this design is an excellent device for a bathhouse. In this case, no efficiency indicators play a role, since only the temperature to which the furnace can heat up is important.

Made in Soviet times, the cast iron bathtub is a durable, solid and very heavy product. However, the once white enamel loses its former shine, and it is unlikely to be restored. It’s a shame to hand over a bathtub by the weight of scrap metal or drag it to a landfill. What else can you do with it? Some owners country cottages and dachas suggest using this cast iron product to greater benefit: making a stove with your own hands from old bath. Agree, this is original and rational. Such a stove will be able to decorate the estate and make it possible to prepare delicious dishes.

Required materials and tools

To build a stove from a cast iron bath yourself, you will need to stock up on the necessary tools.

Here is their exhaustive list:

• grinder (angular Grinder), as well as disks for it (cleaning and cutting);
• electric drill and set of drills;
• equipment that allows gas cutting of metal elements (if available);
• spanners different sizes, hammer and pliers;
• crowbar and shovel;
• container where the solution will be mixed;
• spatula and trowel;
• tools for taking measurements: building level, plumb line, tape measure, metal corner;
• a welding machine (will be needed to install the chimney), as well as electrodes for it and a protective mask;
• hacksaw for woodworking.

The main element of the stove is a cast iron bath. However, the stove has significant weight, so it must have a foundation. For its construction a certain amount of sand is required, cement mortar, bricks, as well as clay and water.

Making a stove from a cast iron bath is much cheaper and more profitable than buying a new one

In addition, you will need:

• corner (metal);
• metal sheet (4 millimeters);
• a grid of a certain size;
• pipe required for the manufacture of a chimney (length - from 2 to 3 m, diameter - from 10 to 12.5 cm, wall thickness - from 3 mm);
• hinges for doors;
• Rabitz;
• polyethylene film (necessary for waterproofing the foundation);
• board (thickness - from 2 to 2.5 cm);
• slats (2 by 2 cm);
• nails.

Making a stove from an old bathtub with your own hands: step-by-step instructions

So, let's look at how you can make your own stove from a cast iron bathtub.

For country house you can make a stove from an old cast iron bath, which in terms of strength and service life will not be inferior to models from the factory

First we build the foundation.

1. Using a cord and stakes, we mark the foundation.
2. We dig a trench, the depth of which should not be less than 50 cm. We put layers of sand and gravel on the bottom, and then compact them thoroughly.
3. Above sand and gravel cushion put waterproofing layer, usually being polyethylene.
4. To raise the base of the foundation, we build formwork in the center. Usually built general formwork, and the filling is done to a height of at least 30 cm.
5. The free volume is reinforced and filled with a solution of cement and sand (1 part cement to 3 parts sand). The volume can also be filled with brickwork.
6. After pouring the foundation, it must harden.

Now it's time to design the stove itself.

To this end, we perform the following actions:

1. Cutting cast iron bath across. This must be done carefully, since cast iron is very fragile. If the movements are sloppy or abrupt, you can damage the bath so that it becomes unsuitable for subsequent work.
2. We take half of the cut bathtub, and then install it on top, and in such a way that we get a structure that looks like a capsule with a cut.
3. Next, for work you will need a sheet of metal with a thickness of more than 5 mm. For the design you will need two halves of the bath and a metal sheet, which is necessary to separate the lower part from the upper (the area for fuel from the place where food is prepared).

A hole for the chimney must be provided in the sheet of metal, located near the back wall. The chimney starts from the lower chamber and then goes through the entire stove.

In order to fix the two halves of the bathtub and the metal sheet with maximum reliability, it is advisable to use fasteners. To prevent smoke from the chamber located on top, a special sealant called stove sealant should be used.

The chimney is attached to the metal sheet using welding.

1. We install the stove blank on the bricks. To prevent the structure from falling, it is very important to level it. Before you start welding, it is recommended to warm up the cast iron a little (for example, the material will become much more pliable if you heat firewood in the chamber).
2. In the lower chamber, we cover the front part with a metal sheet, making a hole in it first large diameter(wood will be thrown into the chamber through this hole).
3. We make chamber doors for the firebox and for cooking.

Well, a simple and quite functional stove is ready. All that remains is to decorate the structure, making it a decoration of the yard. The stove can be painted, for example, in a folk style. No one will even think that a cast iron bathtub was used to make the product.

Sauna stove from an old bathtub

A cast iron bathtub can be the basis for a good kitchen oven. However, it is quite possible to make an excellent sauna stove from it, and with your own hands.

Cast iron is environmentally friendly pure material, so when heated, no harmful substances doesn't stand out

Building a bathhouse and equipping a stove in it will require certain skills, so before construction it makes sense to consult a professional.

There are certain requirements for sauna stoves:

• All such furnaces must have enough power (thermal), and they must also have a large range of adjustment.
• To change the heat and moisture regime, the device is equipped with a heat accumulator and a steam generator.
• Furnaces should have the ability to adjust the convention.

So, from a well-worn cast iron bathtub you can make a simple two-tier sauna stove that meets all the requirements listed above. The lower tier of the stove is one half of the bathtub, which faces the wall with its cut and the convex part at the top. The entire structure on the outside must be lined with brick. The required steam generation is ensured thanks to the stones that cover part of the “bath-oven”. Heat accumulation occurs in the upper chamber.

The operating principle of the stove is quite simple. When passing through a cast iron bath, the gas warms up the stones, then reaches the so-called bread chamber located on the opposite side. Then the gas flow makes a “dive” (goes down and immediately up), after which it exits the pipe. To prevent smoke emissions, a damper is located at the bottom of the oven.

Cast iron stoves: let's evaluate the advantages

Why is a homemade cast iron stove (in our case, a stove made from a cast iron bathtub) so profitable? Cast iron is one of the the best materials for this purpose, however, factory-made cast iron stoves are quite expensive. This material has gained popularity due to its strength, although it is fragile. In addition, it is resistant to critically high temperatures and unpretentious in operation.

Modern cast iron stoves are especially popular

Comparing cast iron and brick oven, let's say that thermal conductivity is much better for the first. And since the bathhouse does not maintain a high temperature all the time, the material should not be sensitive to temperature changes.

IN winter time A bathhouse at a summer cottage is usually not heated, which is why the brick sometimes begins to crumble, but cast iron has no such problems. Concerning fire safety, then only a new brick stove is absolutely not dangerous. With an old product, sparks may break through cracks.

In order to enhance the aesthetics, it is best to line a home-made cast iron bathtub stove with brick. If some blocks are damaged, they can be easily replaced.

Steel competes seriously with cast iron. In terms of heating speed and strength, steel stoves are not inferior to cast iron ones, but the service life of the former is significantly shorter. Perhaps the main weak point steel furnaces is their susceptibility to corrosion. With cast iron this problem is not as pronounced.

By making a stove from a cast iron bath, you will become the owner of a convenient and reliable device, functioning perfectly in any conditions. From such a bath you can also make a very original fireplace for the dacha. It is especially suitable for those who are currently laying the brickwork for a country house, since the fireplace is, as it were, “recessed” into the brick wall, and this makes it possible to use the space with maximum benefit.

Video: Universal miracle stove made from a cast iron bath

Having assessed all the advantages of cast iron (for example, compared to steel) and the relative ease of making a bathhouse from a cast iron bathtub, we note that making a bathhouse yourself from this material is very profitable. So, if you want to make a stove with your own hands from an old bathtub, purchase the missing material, pick up the tools and get started!

Ecology of consumption. Estate: What folk craftsmen can come up with to build with their own hands from improvised means. If you have an old cast-iron bathtub, which is usually used for watering the garden, and the construction of a bathhouse is imminent, then you can save a lot by making a stove into a steam room from this bathtub.

A stove made from a cast iron bath will last almost forever. Even enamel will not burn out quickly. In Soviet times, enamel was applied in two layers. The enamel contained quartz sand. After coating with enamel, the product was baked in an oven at a temperature of more than 800 degrees. The sand melted, and this coating served for decades. The enamel could only be damaged by a strong blow from a heavy object.

In addition, cast iron has a high heat capacity, accumulates and releases heat well. Not afraid of corrosion. The industry produces fireboxes and grates from cast iron, since it does not burn out for a long time, unlike steel. But cast iron is a rather brittle metal.

Cutting the bathtub

It is best to saw the bathtub outdoors, after turning it upside down. Cast iron is a brittle metal, so the procedure requires care. The cutting is done with a grinder. Buy several cutting discs at once. We make markings, and then lightly cut the enamel along the line so that when a full cut is made, chips do not form. We saw through cast iron small angle and make sure that the tool does not heat up. We take breaks. To prevent the halves of the sawn tub from pinching the disk at the final stage of cutting, place supports made of wood or brick along the edges of the cut.

Bathroom cutting is done with a grinder

Furnace foundation

The type of foundation depends on total weight ovens:

• A brick base is suitable for a light stove. The bricks are laid on edge and bonded with mortar. Cement grade for binder mortar is not less than M300;
• for a heavy furnace weighing more than 700 kg, a self-leveling foundation with a depth of at least 50 cm will be required. Formwork is made and filled with liquid concrete with or without filler. The filler will be fine broken brick or crushed stone.

The top of the base is placed flush with the floor or 15 cm below the floor level. To protect the base from moisture, the bottom and walls of the formwork are covered with roofing felt and all joints are coated with bitumen.

Advice. The base should protrude 50 cm beyond the boundaries of the stove. In front of the combustion chamber, 1.2 m of space should remain free.

Furnace No. 1

This version of the stove is capable of heating a bathhouse of 7 square meters. m to 80 degrees in just a couple of hours. To build a stove you will need scrap metal: a cast iron bath, a gas cylinder and a metal drum from a conveyor belt with a diameter of 40 cm. The drum can be replaced gas cylinder or a pipe - this will be the combustion chamber. The sequence of work is as follows:

Advice. If you weld a flat metal platform to the cylinder, you will get a stove for heating the kettle.

Furnace No. 2

From a cast iron bath sawn into two parts you can make a combustion chamber for sauna stove. You will need one half, the second can be used for the fireplace.

The remaining half can be used to build a fireplace. Cast iron can easily withstand brickwork if you line the fireplace with an arched vault. Moreover, for this you do not need to make a complex template from plywood. The front part is decorated with a portal. The chimney is removed. You can make the fireplace closed by installing a transparent door on the firebox and admire the flames.

Advice. Cast iron and red ceramic brick has a different coefficient of thermal expansion. Therefore, when constructing brick walls provide expansion joints, which are filled with asbestos or fire-resistant basalt cardboard.

Furnace No. 3

The third version of the furnace is often used as garden barbecue and for cooking in the summer. If the upper chamber is filled with stones, then this design will replace a traditional oven in small sauna, so let’s not ignore this model.

1. The foundation for the furnace is being poured.
2. The bathtub is sawn into two identical components.
3. Supports are placed on the foundation if you want the stove to be higher.
4. The first half of the bath is installed. A sheet of metal with a thickness of at least 5 mm is laid on top, which will completely cover the upper and lower compartments and serve as a hob.

   Construction of a barbecue stove from a cast iron bath

5. We cut the chimney pipe into the sheet and weld it along the contour.
6. We install the second half on top with the bottom up, having previously cut a hole for the chimney.
7. A metal sheet and glue the halves of the cast iron device together with high-temperature sealant. This will prevent smoke from entering the upper chamber.
8. We clamp both parts with clamps and drill holes along the contour for 10 mm bolts. We fasten both parts of the bathtub and the metal sheet.
9. We lay a brick pedestal under the three-wall oven.
10. The grate is installed 15 cm from the bottom of the combustion chamber. If the grate size is small, then two corners are welded to install it.
11. The front part is covered with a sheet of metal or brickwork with a door installed opposite the combustion and ash chambers.

    Finished product from a cast iron bathtub and sheet metal

12. A metal shutter is made according to the size of the upper chamber. In this form, the chamber can be used as an oven.
13. Now all that remains is to give the product a noble appearance: cover the brick with tiles or plaster.

Such non-standard designs are easy to manufacture and require minimal financial costs. An item that has served its purpose will get a second life, and you will receive a convenient and practical stove that will serve you faithfully for many years. published

Universal stove for a bath: video